Só o ecocardiograma salva na IC.

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Utility of Left Atrial Expansion Index and Stroke Volume in Management of Chronic Systolic Heart Failure

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https://www.onlinejase.com/article/S0894-7317(18)30001-4/abstract

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Highlights

  • LA expansion index and stroke volume were utilized in management of chronic systolic HF.
  • The rate of adverse events was lower in echocardiographic guidance (32.7% vs 52.7%).
  • This strategy can reduce the prescribing frequency and dose of diuretics.
  • It can promote the maximal tolerable evidence-based medication prescription.

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LA volumes were measured at two points, immediately before mitral valve opening (maximal LA volume [Volmax]) and at mitral valve closure (minimal LA volume [Volmin]). LA expansion index was calculated as [(Volmax − Volmin) × 100%]/Volmin.

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Este índice de volume atrial expandido foi bem utilizado em outro estudo

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Left atrial expansion index predicts all-cause
mortality and heart failure admissions in dyspnoea
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Max indexed LAV (mL/m2)  26+ 14    40 + 17 ,                    0.0001
Min indexed LAV (mL/m2)   13+ 10    27 + 16 ,                     0.0001
E/e’      10.0 + 4.3        15.4 + 6.7 ,                                               0.0001
LA expansion index (%) 139 + 81 61 + 31 ,                     0.0001
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Conclusions:  The LA expansion index predicts adverse events in patients with dyspnoea. The prognostic power of the index exceeds that of other well-established echocardiographic parameters such as E/e’ and maximal indexed LA volume.
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